December 2017
Intermediate to advanced
468 pages
13h 12m
English
book
Architectural Patterns
by Anupama Murali, Pethuru Raj, Harihara Subramanian J, Pethuru Raj Chelliah
Content preview from Architectural Patterns
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The workings of a DNS
A DNS works using the concept of distributed databases based on the client-server model. DNS clients are entities that require a name resolution (mapping of host names to IP addresses). DNS servers maintain the data that is required for name resolution. The high-level schematic of a DNS client-server architecture is given in the following diagram:
Suppose the URL www.xyzworks.com is typed into the browser of the DNS client. The browser gets connected to a DNS server to get the equivalent IP address. The DNS server performs this task by first connecting to one of the root DNS servers. The root servers will store the IP ...
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